Answer:
a.–12 – 18
Step-by-step explanation:
We have to compute the difference (the subtraction) between the new, colder temperature, which is equal to -12 °C, and the original temperature, which is equal to 18 °C, that is:
colder temperature - original temperature
Replacing with data:
-12 °C - 18 °C = -30 °C
Answer:
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Step-by-step explanation:

Use the distributive property to multiply each term of the first binomial by each term of the second binomial.
⇒
⇒
Collect like terms
⇒
Hope I helped!
Best regards!!
Answer:
Step-by-step explanation:
Answer: Expression I & Expression II
Step-by-step explanation:
2n+n+3n+5 simplifies to 6n+5